A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A safety grill or grate for use with a camera and the like during maintenance.
A safety grill or grate for use with a camera and the like during maintenance.
Safety Grate
HARAZIM PAUL (author)
2020-05-07
Patent
Electronic Resource
English
IPC:
E02D
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